189345893061 has 64 divisors (see below), whose sum is σ = 290729779200. Its totient is φ = 108643659264.

The previous prime is 189345893057. The next prime is 189345893089. The reversal of 189345893061 is 160398543981.

It is not a de Polignac number, because 189345893061 - 2² = 189345893057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 189345892992 and 189345893010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189345893021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27205300 + ... + 27212258.

It is an arithmetic number, because the mean of its divisors is an integer number (4542652800).

Almost surely, 2^189345893061 is an apocalyptic number.

It is an amenable number.

189345893061 is a deficient number, since it is larger than the sum of its proper divisors (101383886139).

189345893061 is a wasteful number, since it uses less digits than its factorization.

189345893061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 189345893061 in words is "one hundred eighty-nine billion, three hundred forty-five million, eight hundred ninety-three thousand, sixty-one".